Airtac SCJ100 Standard Cylinder SCJ100X250-100SH
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X250-100SH is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø100mm bore, 250mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke250 mm
- Stroke adjust-100 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X250-100SH
The SCJ100X250-100 delivers a powerful 3927 N push at 0.5 MPa from its 100 mm bore, with the unique ability to fine-tune the stroke end by up to 100 mm via the rear adjusting screw. This field-adjustable range is ideal for commissioning trials and format changeovers on heavy-duty equipment, allowing operators to dial in the exact stopping position without swapping the cylinder. The single-rod design uses a 25 mm rod and PT1/2 ports, with a 29 mm air cushion to decelerate high-inertia loads.
Built with a Viton (FKM) seal for 0 to +150 C operation and a built-in magnet for CMSG/DMSG/EMSG sensor mounting, this variant is ready for hot environments and closed-loop position sensing. The tie-rod construction provides a robust, serviceable package, with a body length of 245 mm. For applications needing a fixed stroke, the standard SC100 cylinder is the alternative, but the SCJ's 100 mm adjustment range eliminates the need for external hard stops in many setups.
Airtac SCJ100 Standard Cylinder SCJ100X250-100SH Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X250-100SH |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 250 mm |
| Stroke adjustment | Up to 100 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 29 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SCJ (adjustable-stroke) datasheet. The rear adjusting screw sets the stroke end position; force is the same as the equivalent single-rod SC bore. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
SCJ is single-rod, so force matches the equivalent SC bore: push uses the full bore area, pull subtracts the rod area. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
Model Code: Airtac SCJ100 Standard Cylinder SCJ100X250-100SH
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×250 | Nominal (maximum) stroke length in mm. |
| -100 | Adjustable-stroke range in mm (options 10/20/30/40/50/75/100). |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod, fixed stroke), SCD (double rod), SCT (multi-position). SCJ mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SCJ100 Standard Cylinder SCJ100X250-100SH Is Used
Format Changeovers
Quickly adjust the end stop for different product sizes on packaging or filling lines without mechanical modifications, using the 100 mm adjustment range.
Clamping & Pressing
Dial in the precise clamp or press depth for varying workpiece thicknesses in assembly fixtures, leveraging the 7068 N of force at 0.9 MPa.
Commissioning & Setup
Fine-tune the actuator stroke during machine commissioning to compensate for stack-up tolerances, eliminating the need to stock multiple fixed-stroke cylinders.
Is the Airtac SCJ100 Standard Cylinder SCJ100X250-100SH the Right Cylinder?
Choose the SCJ100X250-100 when you need a 3927 N push force at 0.5 MPa and the ability to adjust the stroke end by up to 100 mm in the field. If your force requirement is lower, the SCJ80 bore provides 2513 N push; for higher demands, the SCJ125 steps up to 6136 N. This adjustable-stroke model is the right pick over a fixed-stroke SC when machine setup times must be minimized or when the exact stroke length is not finalized during design. For a direct replacement, match the 100 mm bore, 250 mm nominal stroke, 100 mm adjust range, PT port thread, and the -S magnet option. Note that at a 250 mm stroke, ensure the load is guided to prevent excessive side-loading and rod bending.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-100)
- ✓ Required force at your working pressure
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear adjusting screw, then lock it before running.
- check Adjust end cushion screws for smooth stops.
- check Use SCJ mounting accessory (FA / LB / TC / TCM1).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCJ100 Standard Cylinder SCJ100X250-100SH FAQ
The push force is 3927 N at 0.5 MPa and 7068 N at 0.9 MPa. The pull force is slightly lower at 3681 N at 0.5 MPa due to the area of the 25 mm rod. The 100 mm adjustment range does not change the force output.
A rear-cap screw sets the stroke end position within a 100 mm range, shortening the 250 mm nominal stroke. It is a direct dimensional replacement for an SC100 of the same bore and stroke, provided the mounting and magnet option (-S) match. The SCJ body is slightly longer to house the mechanism.
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